#C63211
Closest named color: Sinopia (#BB3E03). oklch(54.5% 0.189 33.3), rgb(198, 50, 17).
Aa
White text reads best on this color (5.43:1).
About this color
#C63211 is a medium-dark, vivid red. In OKLCH its lightness is 55%, its chroma 0.189 and its hue 33°. Its hue sits on the warm side of the wheel. The nearest named color is Sinopia (#BB3E03), ΔE 0.027 away. White text reads best on it, at 5.43:1.
| Hue family | Reds |
| Lightness | medium-dark (55%) |
| Chroma | vivid (0.189) |
| Temperature | warm |
| Nearest name | Sinopia (#BB3E03) |
| Black text | 3.86:1 |
| White text | 5.43:1 |
Values
| HEX | #C63211 |
| RGB | rgb(198, 50, 17) |
| HSL | hsl(11, 84%, 42%) |
| OKLCH | oklch(54.5% 0.189 33.3) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #C63211 | 5.43:1 | AA | Lc -81.0 | Fine for body text |
| Black text on #C63211 | 3.86:1 | AA large text | Lc 28.5 | Dividers and decoration only |
| #C63211 text on white | 5.43:1 | AA | Lc 75.6 | Fine for body text |
| #C63211 text on black | 3.86:1 | AA large text | Lc -26.1 | Dividers and decoration only |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 600.
-
Step 50
50
#FDF3F1
oklch(97.1% 0.011 31.1)
-
Step 100
100
#FAE4DF
oklch(93.5% 0.025 32.9)
-
Step 200
200
#F7CFC5
oklch(88.6% 0.047 34.3)
-
Step 300
300
#F2AD9D
oklch(80.9% 0.085 33.5)
-
Step 400
400
#E97E67
oklch(70.7% 0.137 33.3)
-
Step 500
500
#DE583C
oklch(63.1% 0.174 33.5)
-
Step 600
600 (this color)
#C63211
oklch(54.5% 0.189 33.3)
-
Step 700
700
#AE2605
oklch(49.1% 0.176 33.3)
-
Step 800
800
#8D230C
oklch(42.7% 0.145 33.4)
-
Step 900
900
#722314
oklch(37.7% 0.114 32.8)
-
Step 950
950
#43160D
oklch(27% 0.072 33.1)
#C63211 with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #615507 | 0.199 |
| Deuteranopia (no green cones) | #857600 | 0.181 |
| Tritanopia (no blue cones) | #DB002D | 0.056 |
| Achromatopsia (no color) | #6A6A6A | 0.190 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C63211
#C63211
oklch(54.5% 0.189 33.3)
- #007E91
#007E91
oklch(54.5% 0.095 213)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #C63211, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sinopia #BB3E03 ΔE 0.027
- Brick Orange #C14A09 ΔE 0.040
- Dull Red #BB3F3F ΔE 0.040
- Rusty Red #AF2F0D ΔE 0.048
- Burnt Orange #C04E01 ΔE 0.049
- Scarlet #BE0119 ΔE 0.050
- Cherry #CF0234 ΔE 0.053
- Firebrick #B22222 ΔE 0.053
Use #C63211 in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.